How much plankton does a humpback whale eat each day?

Humpback whales primarily feed on small fish and krill, consuming around 1,500 to 2,000 pounds (680 to 900 kg) of food each day during feeding season. Their diet mainly consists of planktonic organisms, particularly during the summer months when they are in nutrient-rich feeding grounds. The amount can vary based on available food sources and individual whale size.